/* Copyright (c) 1997-1999 Miller Puckette.
 * For information on usage and redistribution, and for a DISCLAIMER OF ALL
 * WARRANTIES, see the file, "LICENSE.txt," in this distribution. */

/* g_7_guis.c written by Thomas Musil (c) IEM KUG Graz Austria 2000-2001 */
/* thanks to Miller Puckette, Guenther Geiger and Krzystof Czaja */


#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <ctype.h>
#include "m_pd.h"
#include "g_canvas.h"

#include "g_all_guis.h"
#include <math.h>

#ifdef _WIN32
#include <io.h>
#else
#include <unistd.h>
#endif

#define HMARGIN 1
#define VMARGIN 2
#define PEAKHEIGHT 10

/* ----- vu  gui-peak- & rms- vu-meter-display ---------- */

t_widgetbehavior vu_widgetbehavior;
static t_class *vu_class;

/* widget helper functions */

static void vu_update_rms(t_vu *x, t_glist *glist)
{
    if(glist_isvisible(glist))
    {
        int w4 = x->x_gui.x_w / 4, off = text_ypix(&x->x_gui.x_obj, glist) - IEMGUI_ZOOM(x);
        int xpos = text_xpix(&x->x_gui.x_obj, glist);
        int quad1 = xpos + w4 - IEMGUI_ZOOM(x), quad3 = xpos + x->x_gui.x_w - w4 + IEMGUI_ZOOM(x);

        sys_vgui(".x%lx.c coords %lxRCOVER %d %d %d %d\n",
             glist_getcanvas(glist), x, quad1, off, quad3,
             off + (x->x_led_size+1)*IEMGUI_ZOOM(x)*(IEM_VU_STEPS-x->x_rms));
    }
}

static void vu_update_peak(t_vu *x, t_glist *glist)
{
    t_canvas *canvas = glist_getcanvas(glist);

    if(glist_isvisible(glist))
    {
        int xpos = text_xpix(&x->x_gui.x_obj, glist);
        int ypos = text_ypix(&x->x_gui.x_obj, glist);

        if(x->x_peak)
        {
            int i = iemgui_vu_col[x->x_peak];
            int j = ypos +
                   (x->x_led_size+1)*IEMGUI_ZOOM(x)*(IEM_VU_STEPS+1-x->x_peak) -
                   (x->x_led_size+1)*IEMGUI_ZOOM(x)/2;

            sys_vgui(".x%lx.c coords %lxPLED %d %d %d %d\n", canvas, x,
                     xpos, j, xpos + x->x_gui.x_w + IEMGUI_ZOOM(x), j);
            sys_vgui(".x%lx.c itemconfigure %lxPLED -fill #%06x\n", canvas, x,
                     iemgui_color_hex[i]);
        }
        else
        {
            int mid = xpos + x->x_gui.x_w/2;
            int pkh = PEAKHEIGHT * IEMGUI_ZOOM(x);

            sys_vgui(".x%lx.c itemconfigure %lxPLED -fill #%06x\n",
                     canvas, x, x->x_gui.x_bcol);
            sys_vgui(".x%lx.c coords %lxPLED %d %d %d %d\n",
                     canvas, x, mid, ypos + pkh, mid, ypos + pkh);
        }
    }
}

static void vu_draw_update(t_gobj *client, t_glist *glist)
{
    t_vu *x = (t_vu *)client;
    if (x->x_updaterms)
    {
        vu_update_rms(x, glist);
        x->x_updaterms = 0;
    }
    if (x->x_updatepeak)
    {
        vu_update_peak(x, glist);
        x->x_updatepeak = 0;
    }
}

static void vu_draw_new(t_vu *x, t_glist *glist)
{
    int xpos = text_xpix(&x->x_gui.x_obj, glist);
    int ypos = text_ypix(&x->x_gui.x_obj, glist);
    int hmargin = HMARGIN * IEMGUI_ZOOM(x), vmargin = VMARGIN * IEMGUI_ZOOM(x);
    int iow = IOWIDTH * IEMGUI_ZOOM(x), ioh = IEM_GUI_IOHEIGHT * IEMGUI_ZOOM(x);
    int w4 = x->x_gui.x_w/4, mid = xpos + x->x_gui.x_w/2,
        quad1 = xpos + w4 + IEMGUI_ZOOM(x);
    int quad3 = xpos + x->x_gui.x_w - w4,
        end = xpos + x->x_gui.x_w + 4*IEMGUI_ZOOM(x);
    int k1 = (x->x_led_size+1)*IEMGUI_ZOOM(x), k2 = IEM_VU_STEPS+1, k3 = k1/2;
    int led_col, yyy, i, k4 = ypos - k3;
    int ledw = x->x_led_size * IEMGUI_ZOOM(x);
    int fs = x->x_gui.x_fontsize * IEMGUI_ZOOM(x);
    t_canvas *canvas = glist_getcanvas(glist);

    sys_vgui(".x%lx.c create rectangle %d %d %d %d -width %d -fill #%06x -tags %lxBASE\n",
             canvas, xpos - hmargin, ypos - vmargin,
             xpos+x->x_gui.x_w + hmargin,
             ypos+x->x_gui.x_h + vmargin, IEMGUI_ZOOM(x), x->x_gui.x_bcol, x);
    for(i = 1; i <= IEM_VU_STEPS; i++)
    {
        led_col = iemgui_vu_col[i];
        yyy = k4 + k1*(k2-i);
        sys_vgui(".x%lx.c create line %d %d %d %d -width %d -fill #%06x -tags %lxRLED%d\n",
                 canvas, quad1, yyy, quad3, yyy, ledw,
                 iemgui_color_hex[led_col], x, i);
        if(((i+2) & 3) && (x->x_scale))
            sys_vgui(".x%lx.c create text %d %d -text {%s} -anchor w \
                     -font {{%s} -%d %s} -fill #%06x -tags %lxSCALE%d\n",
                     canvas, end, yyy + k3, iemgui_vu_scale_str[i],
                     x->x_gui.x_font, fs,
                     sys_fontweight, x->x_gui.x_lcol, x, i);
    }
    if(x->x_scale)
    {
        i = IEM_VU_STEPS + 1;
        yyy = k4 + k1 * (k2 - i);
        sys_vgui(".x%lx.c create text %d %d -text {%s} -anchor w \
                 -font {{%s} -%d %s} -fill #%06x -tags %lxSCALE%d\n",
                 canvas, end, yyy + k3, iemgui_vu_scale_str[i],
                 x->x_gui.x_font, fs,
                 sys_fontweight, x->x_gui.x_lcol, x, i);
    }
    sys_vgui(".x%lx.c create rectangle %d %d %d %d -fill #%06x -outline #%06x -tags %lxRCOVER\n",
             canvas, quad1 - IEMGUI_ZOOM(x), ypos - IEMGUI_ZOOM(x), quad3 + IEMGUI_ZOOM(x),
             ypos - IEMGUI_ZOOM(x) + k1*IEM_VU_STEPS, x->x_gui.x_bcol, x->x_gui.x_bcol, x);
    sys_vgui(".x%lx.c create line %d %d %d %d -width %d -fill #%06x -tags %lxPLED\n",
             canvas, mid, ypos + PEAKHEIGHT * IEMGUI_ZOOM(x),
             mid, ypos + PEAKHEIGHT * IEMGUI_ZOOM(x),
             (x->x_led_size+1)*IEMGUI_ZOOM(x), x->x_gui.x_bcol, x);
    if(!x->x_gui.x_fsf.x_snd_able)
    {
        sys_vgui(".x%lx.c create rectangle %d %d %d %d -fill black -tags [list %lxOUT%d outlet]\n",
             canvas,
             xpos - hmargin, ypos + x->x_gui.x_h + vmargin + IEMGUI_ZOOM(x) - ioh,
             xpos - hmargin + iow, ypos + x->x_gui.x_h + vmargin,
             x, 0);
        sys_vgui(".x%lx.c create rectangle %d %d %d %d -fill black -tags [list %lxOUT%d outlet]x\n",
             canvas,
             xpos + x->x_gui.x_w + hmargin - iow, ypos + x->x_gui.x_h + vmargin + IEMGUI_ZOOM(x) - ioh,
             xpos + x->x_gui.x_w + hmargin, ypos + x->x_gui.x_h + vmargin,
             x, 1);
    }
    if(!x->x_gui.x_fsf.x_rcv_able)
    {
        sys_vgui(".x%lx.c create rectangle %d %d %d %d -fill black -tags [list %lxIN%d inlet]\n",
             canvas,
             xpos - hmargin, ypos - vmargin,
             xpos - hmargin + iow, ypos - vmargin - IEMGUI_ZOOM(x) + ioh,
             x, 0);
        sys_vgui(".x%lx.c create rectangle %d %d %d %d -fill black -tags [list %lxIN%d inlet]\n",
             canvas,
             xpos + x->x_gui.x_w + hmargin - iow, ypos - vmargin,
             xpos + x->x_gui.x_w + hmargin, ypos - vmargin - IEMGUI_ZOOM(x) + ioh,
             x, 1);
    }
    sys_vgui(".x%lx.c create text %d %d -text {%s} -anchor w \
             -font {{%s} -%d %s} -fill #%06x -tags [list %lxLABEL label text]\n",
             canvas, xpos+x->x_gui.x_ldx * IEMGUI_ZOOM(x), ypos+x->x_gui.x_ldy * IEMGUI_ZOOM(x),
             (strcmp(x->x_gui.x_lab->s_name, "empty") ? x->x_gui.x_lab->s_name : ""),
             x->x_gui.x_font, fs, sys_fontweight,
             x->x_gui.x_lcol, x);
    x->x_updaterms = x->x_updatepeak = 1;
    sys_queuegui(x, x->x_gui.x_glist, vu_draw_update);
}

static void vu_draw_move(t_vu *x, t_glist *glist)
{
    int xpos = text_xpix(&x->x_gui.x_obj, glist);
    int ypos = text_ypix(&x->x_gui.x_obj, glist);
    int hmargin = HMARGIN * IEMGUI_ZOOM(x), vmargin = VMARGIN * IEMGUI_ZOOM(x);
    int iow = IOWIDTH * IEMGUI_ZOOM(x), ioh = IEM_GUI_IOHEIGHT * IEMGUI_ZOOM(x);
    int w4 = x->x_gui.x_w/4, quad1 = xpos + w4 + IEMGUI_ZOOM(x);
    int quad3 = xpos + x->x_gui.x_w - w4,
        end = xpos + x->x_gui.x_w + 4*IEMGUI_ZOOM(x);
    int k1 = (x->x_led_size+1)*IEMGUI_ZOOM(x), k2 = IEM_VU_STEPS+1, k3 = k1/2;
    int yyy, i, k4 = ypos - k3;
    t_canvas *canvas = glist_getcanvas(glist);

    sys_vgui(".x%lx.c coords %lxBASE %d %d %d %d\n",
             canvas, x, xpos - hmargin, ypos - vmargin,
             xpos + x->x_gui.x_w + hmargin, ypos + x->x_gui.x_h + vmargin);
    for(i = 1; i <= IEM_VU_STEPS; i++)
    {
        yyy = k4 + k1 * (k2 - i);
        sys_vgui(".x%lx.c coords %lxRLED%d %d %d %d %d\n",
                 canvas, x, i, quad1, yyy, quad3, yyy);
        if(((i+2) & 3) && (x->x_scale))
            sys_vgui(".x%lx.c coords %lxSCALE%d %d %d\n",
                     canvas, x, i, end, yyy + k3);
    }
    if(x->x_scale)
    {
        i = IEM_VU_STEPS + 1;
        yyy = k4 + k1 * (k2 - i);
        sys_vgui(".x%lx.c coords %lxSCALE%d %d %d\n",
                 canvas, x, i, end, yyy + k3);
    }
    x->x_updaterms = x->x_updatepeak = 1;
    sys_queuegui(x, glist, vu_draw_update);
    sys_vgui(".x%lx.c coords %lxLABEL %d %d\n",
             canvas, x, xpos + x->x_gui.x_ldx * IEMGUI_ZOOM(x),
             ypos + x->x_gui.x_ldy * IEMGUI_ZOOM(x));
    if(!x->x_gui.x_fsf.x_snd_able)
    {
        sys_vgui(".x%lx.c coords %lxOUT%d %d %d %d %d\n",
             canvas, x, 0,
             xpos - hmargin, ypos + x->x_gui.x_h + vmargin + IEMGUI_ZOOM(x) - ioh,
             xpos - hmargin + iow, ypos + x->x_gui.x_h + vmargin);
        sys_vgui(".x%lx.c coords %lxOUT%d %d %d %d %d\n",
             canvas, x, 1,
             xpos + x->x_gui.x_w + hmargin - iow, ypos + x->x_gui.x_h + vmargin + IEMGUI_ZOOM(x) - ioh,
             xpos + x->x_gui.x_w + hmargin, ypos + x->x_gui.x_h + vmargin);
    }
    if(!x->x_gui.x_fsf.x_rcv_able)
    {
        sys_vgui(".x%lx.c coords %lxIN%d %d %d %d %d\n",
             canvas, x, 0,
             xpos - hmargin, ypos - vmargin,
             xpos - hmargin + iow, ypos - vmargin - IEMGUI_ZOOM(x) + ioh);
        sys_vgui(".x%lx.c coords %lxIN%d %d %d %d %d\n",
             canvas, x, 1,
             xpos + x->x_gui.x_w + hmargin - iow, ypos - vmargin,
             xpos + x->x_gui.x_w + hmargin, ypos - vmargin - IEMGUI_ZOOM(x) + ioh);
    }
}

static void vu_draw_erase(t_vu* x,t_glist* glist)
{
    int i;
    t_canvas *canvas = glist_getcanvas(glist);

    sys_vgui(".x%lx.c delete %lxBASE\n", canvas, x);
    for(i = 1; i <= IEM_VU_STEPS; i++)
    {
        sys_vgui(".x%lx.c delete %lxRLED%d\n", canvas, x, i);
        if(((i+2) & 3) && (x->x_scale))
            sys_vgui(".x%lx.c delete %lxSCALE%d\n", canvas, x, i);
    }
    if(x->x_scale)
    {
        i = IEM_VU_STEPS + 1;
        sys_vgui(".x%lx.c delete %lxSCALE%d\n", canvas, x, i);
    }
    sys_vgui(".x%lx.c delete %lxPLED\n", canvas, x);
    sys_vgui(".x%lx.c delete %lxRCOVER\n", canvas, x);
    sys_vgui(".x%lx.c delete %lxLABEL\n", canvas, x);
    if(!x->x_gui.x_fsf.x_snd_able)
    {
        sys_vgui(".x%lx.c delete %lxOUT%d\n", canvas, x, 0);
        sys_vgui(".x%lx.c delete %lxOUT%d\n", canvas, x, 1);
    }
    if(!x->x_gui.x_fsf.x_rcv_able)
    {
        sys_vgui(".x%lx.c delete %lxIN%d\n", canvas, x, 0);
        sys_vgui(".x%lx.c delete %lxIN%d\n", canvas, x, 1);
    }
}

static void vu_draw_config(t_vu* x, t_glist* glist)
{
    int i;
    int ledw = x->x_led_size * IEMGUI_ZOOM(x);
    int fs = x->x_gui.x_fontsize * IEMGUI_ZOOM(x);
    t_canvas *canvas = glist_getcanvas(glist);

    sys_vgui(".x%lx.c itemconfigure %lxBASE -fill #%06x\n", canvas, x, x->x_gui.x_bcol);
    for(i = 1; i <= IEM_VU_STEPS; i++)
    {
        sys_vgui(".x%lx.c itemconfigure %lxRLED%d -width %d\n", canvas, x, i, ledw);
        if(((i+2) & 3) && (x->x_scale))
            sys_vgui(".x%lx.c itemconfigure %lxSCALE%d -text {%s} -font {{%s} -%d %s} -fill #%06x\n",
                     canvas, x, i, iemgui_vu_scale_str[i], x->x_gui.x_font,
                     fs, sys_fontweight,
                     x->x_gui.x_fsf.x_selected ? IEM_GUI_COLOR_SELECTED : x->x_gui.x_lcol);
    }
    if(x->x_scale)
    {
        i = IEM_VU_STEPS + 1;
        sys_vgui(".x%lx.c itemconfigure %lxSCALE%d -text {%s} -font {{%s} -%d %s} -fill #%06x\n",
                 canvas, x, i, iemgui_vu_scale_str[i], x->x_gui.x_font,
                 fs, sys_fontweight,
                 x->x_gui.x_fsf.x_selected ? IEM_GUI_COLOR_SELECTED : x->x_gui.x_lcol);
    }
    sys_vgui(".x%lx.c itemconfigure %lxLABEL -font {{%s} -%d %s} -fill #%06x -text {%s} \n",
             canvas, x, x->x_gui.x_font, fs, sys_fontweight,
             x->x_gui.x_fsf.x_selected ? IEM_GUI_COLOR_SELECTED : x->x_gui.x_lcol,
             strcmp(x->x_gui.x_lab->s_name, "empty") ? x->x_gui.x_lab->s_name : "");

    sys_vgui(".x%lx.c itemconfigure %lxRCOVER -fill #%06x -outline #%06x\n", canvas,
             x, x->x_gui.x_bcol, x->x_gui.x_bcol);
    sys_vgui(".x%lx.c itemconfigure %lxPLED -width %d\n", canvas, x, ledw);
}

static void vu_draw_io(t_vu* x, t_glist* glist, int old_snd_rcv_flags)
{
    int xpos = text_xpix(&x->x_gui.x_obj, glist);
    int ypos = text_ypix(&x->x_gui.x_obj, glist);
    int hmargin = HMARGIN * IEMGUI_ZOOM(x), vmargin = VMARGIN * IEMGUI_ZOOM(x);
    int iow = IOWIDTH * IEMGUI_ZOOM(x), ioh = IEM_GUI_IOHEIGHT * IEMGUI_ZOOM(x);
    t_canvas *canvas = glist_getcanvas(glist);

    if((old_snd_rcv_flags & IEM_GUI_OLD_SND_FLAG) && !x->x_gui.x_fsf.x_snd_able)
    {
        sys_vgui(".x%lx.c create rectangle %d %d %d %d -fill black -tags %lxOUT%d\n",
             canvas,
             xpos - hmargin, ypos + x->x_gui.x_h + vmargin + IEMGUI_ZOOM(x) - ioh,
             xpos - hmargin + iow, ypos + x->x_gui.x_h + vmargin,
             x, 0);
        sys_vgui(".x%lx.c create rectangle %d %d %d %d -fill black -tags %lxOUT%d\n",
             canvas,
             xpos + x->x_gui.x_w + hmargin - iow, ypos + x->x_gui.x_h + vmargin + IEMGUI_ZOOM(x) - ioh,
             xpos + x->x_gui.x_w + hmargin, ypos + x->x_gui.x_h + vmargin,
             x, 1);
        /* keep above outlets */
        sys_vgui(".x%lx.c raise %lxLABEL %lxOUT%d\n", canvas, x, x, 1);
    }
    if(!(old_snd_rcv_flags & IEM_GUI_OLD_SND_FLAG) && x->x_gui.x_fsf.x_snd_able)
    {
        sys_vgui(".x%lx.c delete %lxOUT%d\n", canvas, x, 0);
        sys_vgui(".x%lx.c delete %lxOUT%d\n", canvas, x, 1);
    }
    if((old_snd_rcv_flags & IEM_GUI_OLD_RCV_FLAG) && !x->x_gui.x_fsf.x_rcv_able)
    {
        sys_vgui(".x%lx.c create rectangle %d %d %d %d -fill black -tags %lxIN%d\n",
             canvas,
             xpos - hmargin, ypos - vmargin,
             xpos - hmargin + iow, ypos - vmargin - IEMGUI_ZOOM(x) + ioh,
             x, 0);
        sys_vgui(".x%lx.c create rectangle %d %d %d %d -fill black -tags %lxIN%d\n",
             canvas,
             xpos + x->x_gui.x_w + hmargin - iow, ypos - vmargin,
             xpos + x->x_gui.x_w + hmargin, ypos - vmargin - IEMGUI_ZOOM(x) + ioh,
             x, 1);
        /* keep above inlets */
        sys_vgui(".x%lx.c raise %lxLABEL %lxIN%d\n", canvas, x, x, 1);
    }
    if(!(old_snd_rcv_flags & IEM_GUI_OLD_RCV_FLAG) && x->x_gui.x_fsf.x_rcv_able)
    {
        sys_vgui(".x%lx.c delete %lxIN%d\n", canvas, x, 0);
        sys_vgui(".x%lx.c delete %lxIN%d\n", canvas, x, 1);
    }
}

static void vu_draw_select(t_vu* x,t_glist* glist)
{
    int i;
    t_canvas *canvas = glist_getcanvas(glist);

    if(x->x_gui.x_fsf.x_selected)
    {
        sys_vgui(".x%lx.c itemconfigure %lxBASE -outline #%06x\n", canvas, x, IEM_GUI_COLOR_SELECTED);
        for(i = 1; i <= IEM_VU_STEPS; i++)
        {
            if(((i+2) & 3) && (x->x_scale))
                sys_vgui(".x%lx.c itemconfigure %lxSCALE%d -fill #%06x\n",
                         canvas, x, i, IEM_GUI_COLOR_SELECTED);
        }
        if(x->x_scale)
        {
            i = IEM_VU_STEPS + 1;
            sys_vgui(".x%lx.c itemconfigure %lxSCALE%d -fill #%06x\n",
                     canvas, x, i, IEM_GUI_COLOR_SELECTED);
        }
        sys_vgui(".x%lx.c itemconfigure %lxLABEL -fill #%06x\n", canvas, x, IEM_GUI_COLOR_SELECTED);
    }
    else
    {
        sys_vgui(".x%lx.c itemconfigure %lxBASE -outline #%06x\n", canvas, x, IEM_GUI_COLOR_NORMAL);
        for(i = 1; i <= IEM_VU_STEPS; i++)
        {
            if(((i+2) & 3) && (x->x_scale))
                sys_vgui(".x%lx.c itemconfigure %lxSCALE%d -fill #%06x\n",
                         canvas, x, i, x->x_gui.x_lcol);
        }
        if(x->x_scale)
        {
            i = IEM_VU_STEPS+1;
            sys_vgui(".x%lx.c itemconfigure %lxSCALE%d -fill #%06x\n",
                     canvas, x, i, x->x_gui.x_lcol);
        }
        sys_vgui(".x%lx.c itemconfigure %lxLABEL -fill #%06x\n", canvas, x, x->x_gui.x_lcol);
    }
}

void vu_draw(t_vu *x, t_glist *glist, int mode)
{
    if(mode == IEM_GUI_DRAW_MODE_MOVE)
        vu_draw_move(x, glist);
    else if(mode == IEM_GUI_DRAW_MODE_NEW)
        vu_draw_new(x, glist);
    else if(mode == IEM_GUI_DRAW_MODE_SELECT)
        vu_draw_select(x, glist);
    else if(mode == IEM_GUI_DRAW_MODE_ERASE)
        vu_draw_erase(x, glist);
    else if(mode == IEM_GUI_DRAW_MODE_CONFIG)
        vu_draw_config(x, glist);
    else if(mode >= IEM_GUI_DRAW_MODE_IO)
        vu_draw_io(x, glist, mode - IEM_GUI_DRAW_MODE_IO);
}

/* ------------------------ vu widgetbehaviour----------------------------- */

static void vu_getrect(t_gobj *z, t_glist *glist,
                       int *xp1, int *yp1, int *xp2, int *yp2)
{
    t_vu* x = (t_vu*)z;
    int hmargin = HMARGIN * IEMGUI_ZOOM(x), vmargin = VMARGIN * IEMGUI_ZOOM(x);

    *xp1 = text_xpix(&x->x_gui.x_obj, glist) - hmargin;
    *yp1 = text_ypix(&x->x_gui.x_obj, glist) - vmargin;
    *xp2 = *xp1 + x->x_gui.x_w + hmargin*2;
    *yp2 = *yp1 + x->x_gui.x_h + vmargin*2;
}

static void vu_save(t_gobj *z, t_binbuf *b)
{
    t_vu *x = (t_vu *)z;
    t_symbol *bflcol[3];
    t_symbol *srl[3];

    iemgui_save(&x->x_gui, srl, bflcol);
    binbuf_addv(b, "ssiisiissiiiissii", gensym("#X"), gensym("obj"),
                (int)x->x_gui.x_obj.te_xpix, (int)x->x_gui.x_obj.te_ypix,
                gensym("vu"), x->x_gui.x_w/IEMGUI_ZOOM(x), x->x_gui.x_h/IEMGUI_ZOOM(x),
                srl[1], srl[2],
                x->x_gui.x_ldx, x->x_gui.x_ldy,
                iem_fstyletoint(&x->x_gui.x_fsf), x->x_gui.x_fontsize,
                bflcol[0], bflcol[2], x->x_scale,
                iem_symargstoint(&x->x_gui.x_isa));
    binbuf_addv(b, ";");
}

void vu_check_height(t_vu *x, int h)
{
    int n;

    n = h / IEM_VU_STEPS;
    if(n < IEM_VU_MINSIZE)
        n = IEM_VU_MINSIZE;
    x->x_led_size = n - 1;
    x->x_gui.x_h = (IEM_VU_STEPS * n) * IEMGUI_ZOOM(x);
}

static void vu_scale(t_vu *x, t_floatarg fscale)
{
    int i, scale = (int)fscale;

    if(scale != 0) scale = 1;
    if(x->x_scale && !scale)
    {
        t_canvas *canvas = glist_getcanvas(x->x_gui.x_glist);

        x->x_scale = (int)scale;
        if(glist_isvisible(x->x_gui.x_glist))
        {
            for(i = 1; i <= IEM_VU_STEPS; i++)
            {
                if((i+2) & 3)
                    sys_vgui(".x%lx.c delete %lxSCALE%d\n", canvas, x, i);
            }
            i = IEM_VU_STEPS + 1;
            sys_vgui(".x%lx.c delete %lxSCALE%d\n", canvas, x, i);
        }
    }
    if(!x->x_scale && scale)
    {
        int w4 = x->x_gui.x_w/4;
        int end = text_xpix(&x->x_gui.x_obj, x->x_gui.x_glist) + x->x_gui.x_w + 4*IEMGUI_ZOOM(x);
        int k1 = (x->x_led_size+1)*IEMGUI_ZOOM(x), k2 = IEM_VU_STEPS+1, k3 = k1/2;
        int yyy, k4 = text_ypix(&x->x_gui.x_obj, x->x_gui.x_glist) - k3;
        int fs = x->x_gui.x_fontsize * IEMGUI_ZOOM(x);
        t_canvas *canvas = glist_getcanvas(x->x_gui.x_glist);

        x->x_scale = (int)scale;
        if(glist_isvisible(x->x_gui.x_glist))
        {
            for(i = 1; i <= IEM_VU_STEPS; i++)
            {
                yyy = k4 + k1 * (k2 - i);
                if((i+2) & 3)
                    sys_vgui(".x%lx.c create text %d %d -text {%s} -anchor w \
                             -font {{%s} -%d %s} -fill #%06x -tags %lxSCALE%d\n",
                             canvas, end, yyy + k3, iemgui_vu_scale_str[i],
                             x->x_gui.x_font, fs,
                             sys_fontweight, x->x_gui.x_lcol, x, i);
            }
            i = IEM_VU_STEPS + 1;
            yyy = k4 + k1 * (k2 - i);
            sys_vgui(".x%lx.c create text %d %d -text {%s} -anchor w \
                     -font {{%s} -%d %s} -fill #%06x -tags %lxSCALE%d\n",
                     canvas, end, yyy + k3, iemgui_vu_scale_str[i],
                     x->x_gui.x_font, fs,
                     sys_fontweight, x->x_gui.x_lcol, x, i);
        }
    }
}

static void vu_properties(t_gobj *z, t_glist *owner)
{
    t_vu *x = (t_vu *)z;
    char buf[800];
    t_symbol *srl[3];

    iemgui_properties(&x->x_gui, srl);
    sprintf(buf, "pdtk_iemgui_dialog %%s |vu| \
            --------dimensions(pix)(pix):-------- %d %d width: %d %d height: \
            empty 0.0 empty 0.0 empty %d \
            %d no_scale scale %d %d empty %d \
            %s %s \
            %s %d %d \
            %d %d \
            #%06x none #%06x\n",
            x->x_gui.x_w/IEMGUI_ZOOM(x), IEM_GUI_MINSIZE,
            x->x_gui.x_h/IEMGUI_ZOOM(x), IEM_VU_STEPS*IEM_VU_MINSIZE,
            0,/*no_schedule*/
            x->x_scale, -1, -1, -1,/*no linlog, no init, no multi*/
            srl[0]->s_name, srl[1]->s_name,/*no send*/
            srl[2]->s_name, x->x_gui.x_ldx, x->x_gui.x_ldy,
            x->x_gui.x_fsf.x_font_style, x->x_gui.x_fontsize,
            0xffffff & x->x_gui.x_bcol, 0xffffff & x->x_gui.x_lcol);
    gfxstub_new(&x->x_gui.x_obj.ob_pd, x, buf);
}

static void vu_dialog(t_vu *x, t_symbol *s, int argc, t_atom *argv)
{
    t_symbol *srl[3];
    int w = (int)atom_getfloatarg(0, argc, argv);
    int h = (int)atom_getfloatarg(1, argc, argv);
    int scale = (int)atom_getfloatarg(4, argc, argv);
    int sr_flags;
    t_atom undo[18];
    iemgui_setdialogatoms(&x->x_gui, 18, undo);
    SETFLOAT(undo+2, 0.01);
    SETFLOAT(undo+3, 1);
    SETFLOAT(undo+4, x->x_scale);
    SETFLOAT(undo+5, -1);
    SETSYMBOL(undo+15, gensym("none"));
    pd_undo_set_objectstate(x->x_gui.x_glist, (t_pd*)x, gensym("dialog"),
                            18, undo,
                            argc, argv);

    srl[0] = gensym("empty");
    sr_flags = iemgui_dialog(&x->x_gui, srl, argc, argv);
    x->x_gui.x_fsf.x_snd_able = 0;
    x->x_gui.x_isa.x_loadinit = 0;
    x->x_gui.x_w = iemgui_clip_size(w) * IEMGUI_ZOOM(x);
    vu_check_height(x, h);
    if(scale != 0)
        scale = 1;
    vu_scale(x, (t_float)scale);
    (*x->x_gui.x_draw)(x, x->x_gui.x_glist, IEM_GUI_DRAW_MODE_CONFIG);
    (*x->x_gui.x_draw)(x, x->x_gui.x_glist, IEM_GUI_DRAW_MODE_IO + sr_flags);
    (*x->x_gui.x_draw)(x, x->x_gui.x_glist, IEM_GUI_DRAW_MODE_MOVE);
    canvas_fixlinesfor(x->x_gui.x_glist, (t_text*)x);
}

static void vu_size(t_vu *x, t_symbol *s, int ac, t_atom *av)
{
    x->x_gui.x_w = iemgui_clip_size((int)atom_getfloatarg(0, ac, av)) * IEMGUI_ZOOM(x);
    if(ac > 1)
        vu_check_height(x, (int)atom_getfloatarg(1, ac, av));
    if(glist_isvisible(x->x_gui.x_glist))
    {
        (*x->x_gui.x_draw)(x, x->x_gui.x_glist, IEM_GUI_DRAW_MODE_MOVE);
        (*x->x_gui.x_draw)(x, x->x_gui.x_glist, IEM_GUI_DRAW_MODE_CONFIG);
        canvas_fixlinesfor(x->x_gui.x_glist, (t_text*)x);
    }
}

static void vu_delta(t_vu *x, t_symbol *s, int ac, t_atom *av)
{iemgui_delta((void *)x, &x->x_gui, s, ac, av);}

static void vu_pos(t_vu *x, t_symbol *s, int ac, t_atom *av)
{iemgui_pos((void *)x, &x->x_gui, s, ac, av);}

static void vu_color(t_vu *x, t_symbol *s, int ac, t_atom *av)
{iemgui_color((void *)x, &x->x_gui, s, ac, av);}

static void vu_receive(t_vu *x, t_symbol *s)
{iemgui_receive(x, &x->x_gui, s);}

static void vu_label(t_vu *x, t_symbol *s)
{iemgui_label((void *)x, &x->x_gui, s);}

static void vu_label_pos(t_vu *x, t_symbol *s, int ac, t_atom *av)
{iemgui_label_pos((void *)x, &x->x_gui, s, ac, av);}

static void vu_label_font(t_vu *x, t_symbol *s, int ac, t_atom *av)
{iemgui_label_font((void *)x, &x->x_gui, s, ac, av);}

static void vu_float(t_vu *x, t_floatarg rms)
{
    int i;
    int old = x->x_rms;
    if(rms <= IEM_VU_MINDB)
        x->x_rms = 0;
    else if(rms >= IEM_VU_MAXDB)
        x->x_rms = IEM_VU_STEPS;
    else
    {
        int i = (int)(2.0*(rms + IEM_VU_OFFSET));
        x->x_rms = iemgui_vu_db2i[i];
    }
    i = (int)(100.0*rms + 10000.5);
    rms = 0.01*(t_float)(i - 10000);
    x->x_fr = rms;
    outlet_float(x->x_out_rms, rms);
    x->x_updaterms = 1;
    if(x->x_rms != old)
        sys_queuegui(x, x->x_gui.x_glist, vu_draw_update);
}

static void vu_ft1(t_vu *x, t_floatarg peak)
{
    int i;
    int old = x->x_peak;
    if(peak <= IEM_VU_MINDB)
        x->x_peak = 0;
    else if(peak >= IEM_VU_MAXDB)
        x->x_peak = IEM_VU_STEPS;
    else
    {
        int i = (int)(2.0*(peak + IEM_VU_OFFSET));
        x->x_peak = iemgui_vu_db2i[i];
    }
    i = (int)(100.0*peak + 10000.5);
    peak = 0.01*(t_float)(i - 10000);
    x->x_fp = peak;
    x->x_updatepeak = 1;
    if(x->x_peak != old)
        sys_queuegui(x, x->x_gui.x_glist, vu_draw_update);
    outlet_float(x->x_out_peak, peak);
}

static void vu_bang(t_vu *x)
{
    outlet_float(x->x_out_peak, x->x_fp);
    outlet_float(x->x_out_rms, x->x_fr);
    x->x_updaterms = x->x_updatepeak = 1;
    sys_queuegui(x, x->x_gui.x_glist, vu_draw_update);
}

static void *vu_new(t_symbol *s, int argc, t_atom *argv)
{
    t_vu *x = (t_vu *)pd_new(vu_class);
    int w = IEM_GUI_DEFAULTSIZE, h = IEM_VU_STEPS*IEM_VU_DEFAULTSIZE;
    int ldx = -1, ldy = -8, f = 0, fs = 10, scale  =1;
    int ftbreak = IEM_BNG_DEFAULTBREAKFLASHTIME, fthold = IEM_BNG_DEFAULTHOLDFLASHTIME;
    char str[144];

    iem_inttosymargs(&x->x_gui.x_isa, 0);
    iem_inttofstyle(&x->x_gui.x_fsf, 0);

    x->x_gui.x_bcol = 0x404040;
    x->x_gui.x_fcol = 0x00;
    x->x_gui.x_lcol = 0x00;

    if((argc >= 11)&&IS_A_FLOAT(argv,0)&&IS_A_FLOAT(argv,1)
       &&(IS_A_SYMBOL(argv,2)||IS_A_FLOAT(argv,2))
       &&(IS_A_SYMBOL(argv,3)||IS_A_FLOAT(argv,3))
       &&IS_A_FLOAT(argv,4)&&IS_A_FLOAT(argv,5)
       &&IS_A_FLOAT(argv,6)&&IS_A_FLOAT(argv,7)
       &&IS_A_FLOAT(argv,10))
    {
        w = (int)atom_getfloatarg(0, argc, argv);
        h = (int)atom_getfloatarg(1, argc, argv);
        iemgui_new_getnames(&x->x_gui, 1, argv);
        x->x_gui.x_snd_unexpanded = x->x_gui.x_snd = gensym("nosndno"); /*no send*/
        ldx = (int)atom_getfloatarg(4, argc, argv);
        ldy = (int)atom_getfloatarg(5, argc, argv);
        iem_inttofstyle(&x->x_gui.x_fsf, atom_getfloatarg(6, argc, argv));
        fs = (int)atom_getfloatarg(7, argc, argv);
        iemgui_all_loadcolors(&x->x_gui, argv+8, NULL, argv+9);
        scale = (int)atom_getfloatarg(10, argc, argv);
    }
    else iemgui_new_getnames(&x->x_gui, 1, 0);
    if((argc == 12)&&IS_A_FLOAT(argv,11))
        iem_inttosymargs(&x->x_gui.x_isa, atom_getfloatarg(11, argc, argv));
    x->x_gui.x_draw = (t_iemfunptr)vu_draw;

    x->x_gui.x_fsf.x_snd_able = 0;
    x->x_gui.x_fsf.x_rcv_able = 1;
    x->x_gui.x_glist = (t_glist *)canvas_getcurrent();
    if (!strcmp(x->x_gui.x_rcv->s_name, "empty"))
        x->x_gui.x_fsf.x_rcv_able = 0;
    if (x->x_gui.x_fsf.x_font_style == 1)
        strcpy(x->x_gui.x_font, "helvetica");
    else if(x->x_gui.x_fsf.x_font_style == 2)
        strcpy(x->x_gui.x_font, "times");
    else { x->x_gui.x_fsf.x_font_style = 0;
        strcpy(x->x_gui.x_font, sys_font); }
    if(x->x_gui.x_fsf.x_rcv_able)
        pd_bind(&x->x_gui.x_obj.ob_pd, x->x_gui.x_rcv);
    x->x_gui.x_ldx = ldx;
    x->x_gui.x_ldy = ldy;
    if(fs < 4)
        fs = 4;
    x->x_gui.x_fontsize = fs;
    x->x_gui.x_w = iemgui_clip_size(w);
    vu_check_height(x, h);
    if(scale != 0)
        scale = 1;
    x->x_scale = scale;
    x->x_peak = 0;
    x->x_rms = 0;
    x->x_fp = -101.0;
    x->x_fr = -101.0;
    iemgui_verify_snd_ne_rcv(&x->x_gui);
    inlet_new(&x->x_gui.x_obj, &x->x_gui.x_obj.ob_pd, &s_float, gensym("ft1"));
    x->x_out_rms = outlet_new(&x->x_gui.x_obj, &s_float);
    x->x_out_peak = outlet_new(&x->x_gui.x_obj, &s_float);
    x->x_gui.x_h /= IEMGUI_ZOOM(x); /* unzoom, to prevent double-application in iemgui_newzoom */
    iemgui_newzoom(&x->x_gui);
    return (x);
}

static void vu_free(t_vu *x)
{
    if(x->x_gui.x_fsf.x_rcv_able)
        pd_unbind(&x->x_gui.x_obj.ob_pd, x->x_gui.x_rcv);
    gfxstub_deleteforkey(x);
}

void g_vumeter_setup(void)
{
    vu_class = class_new(gensym("vu"), (t_newmethod)vu_new,
        (t_method)vu_free, sizeof(t_vu), 0, A_GIMME, 0);
    class_addbang(vu_class,vu_bang);
    class_addfloat(vu_class,vu_float);
    class_addmethod(vu_class, (t_method)vu_ft1,
        gensym("ft1"), A_FLOAT, 0);
    class_addmethod(vu_class, (t_method)vu_dialog,
        gensym("dialog"), A_GIMME, 0);
    class_addmethod(vu_class, (t_method)vu_size,
        gensym("size"), A_GIMME, 0);
    class_addmethod(vu_class, (t_method)vu_scale,
        gensym("scale"), A_DEFFLOAT, 0);
    class_addmethod(vu_class, (t_method)vu_delta,
        gensym("delta"), A_GIMME, 0);
    class_addmethod(vu_class, (t_method)vu_pos,
        gensym("pos"), A_GIMME, 0);
    class_addmethod(vu_class, (t_method)vu_color,
        gensym("color"), A_GIMME, 0);
    class_addmethod(vu_class, (t_method)vu_receive,
        gensym("receive"), A_DEFSYM, 0);
    class_addmethod(vu_class, (t_method)vu_label,
        gensym("label"), A_DEFSYM, 0);
    class_addmethod(vu_class, (t_method)vu_label_pos,
        gensym("label_pos"), A_GIMME, 0);
    class_addmethod(vu_class, (t_method)vu_label_font,
        gensym("label_font"), A_GIMME, 0);
    class_addmethod(vu_class, (t_method)iemgui_zoom,
        gensym("zoom"), A_CANT, 0);
    vu_widgetbehavior.w_getrectfn =    vu_getrect;
    vu_widgetbehavior.w_displacefn =   iemgui_displace;
    vu_widgetbehavior.w_selectfn =     iemgui_select;
    vu_widgetbehavior.w_activatefn =   NULL;
    vu_widgetbehavior.w_deletefn =     iemgui_delete;
    vu_widgetbehavior.w_visfn =        iemgui_vis;
    vu_widgetbehavior.w_clickfn =      NULL;
    class_setwidget(vu_class,&vu_widgetbehavior);
    class_sethelpsymbol(vu_class, gensym("vu"));
    class_setsavefn(vu_class, vu_save);
    class_setpropertiesfn(vu_class, vu_properties);
}
